Riveting device



June 3. 1924. 1,496,052

Y P. GRIFFIN 4 RIVETING DEVICE Original 19 y 10. 192) ay/W12 @Mx & v

lave/2 for AHarncy s Patented June 3, 1924.

UNITED STATES 1,496,052 PATENT OFFICE- PATRICK L. GRIFFIN, or BOONE,Iowa.

RIVETING DEVICE.

Application filed May 10, 1921, Serial No. 468,284. RenewedApril 7,1924.

To all whom it may concern! Be it known that I, PATRICK L. JGRIFFIN,

useful Riveting Device, of which the following is a specification.

The object of my invention is to provide a device for engaging the headof a rivet, and for holding it in position while the opposite end of therivet is beingmashed, the

- parts being of simple, durable and comparatively inexpensiveconstruction.

More particularly my invention relates to a device for'engaging the headof a rivet in the type of work-where it is very difficult to engage therivet without some special tool for that purpose. 3

With these and other objects in View my invention consists in theconstruction, arrangement and combination of the various parts of mydevice, whereby the objects contemplated are attained, as hereinaftermore fully set forth, pointed out in my claims,

and illustrated in theaccompanying draw-' ings, in which:. I

Figure 1 1s a slde elevation of my 1mproved riveting device, parts beingshown in section and broken away to better illustrate the construction.

Figure 2 is an end elevation of the lower end of my tool or device.

Figure 3 is a sectional view taken line 3-3 of Figure 1; and

Figure 4 is a horizontal sectional view taken on the line 4-4 'of'Figure1.

In the accompanying drawings I have used the reference numeral 10 toindicate generally a hollow tube or pipe which has its upper endinteriorly screw threaded, as at 11.

on the A disk 12 having its periphery screw threaded is received withinthe pipe and on the screw threads 11. The disk 12*is provided with anopening 13 substantially T shaped for the purpose hereinafter more fullyset forth. The shape of the opening 13 is clearly illustrated in Figure4 of the drawings.

The lower end of the tube 10 has fixed to it a pair of arms 14 whichhave their ends project laterally from the tube 10. The arms 14 arefixed to the tube 10 by means of rivets 15. The ends of the arms 14 areprovided with registering openings through which is extended the bolts16.

It will be understood that the ends of the arms 14 are slightly spacedapart.

Swingingly mounted on the bolts 16 are the holder members 17. The holdermem-' bers 17 are provided with a contracted portion 18 which has itsupper end looped as at 19 forextending around the bolts 16..

The holder devices 17 are provided with the squared openings 20 in whichare slidably received the blocks 21. a

The blocks 21 are provided with pins 22' and 23 for preventing saidblocks from becoming separated from the holder devices 17 Receivedwithinthe tube 10 is a wedge member 24 which is provided with a shank 25 and ahead 26. The shank 25 is slidably received in the opening 13 of the disk12.

The head 26 is designed to be slidthrough the T shaped opening whenthewedge member is assembled.

After the head 26 has been slid. through the opening theentire wedgemember may be rotated through 180so that the head 26 will no longerregister with the T shaped opening.

The inner ends of the blocks 21 are provided with inclined surfaces 27which are arranged substantially parallel to the, sides of the wedgemember 24.

One ofthe blocks 21 is provided with a cup shaped opening 28 which isdesigned to receive the'head of a rivet 29 as shown in Figure 1 'ofthedrawings. The reference numeral 30' refersto'the'boiler plates about andthe cup shaped opening 28 is set over I the rivet head.

The head 26 of the shank '25 is then tapped causing the wedge member 24to engage the blocks 21 until they are forced apart so that one endrests against the plate 31 and the other block rests snugly against thehead of the rivet.

VJ hen the device is inserted between the boiler plates 30 and 31 andthe rivet is set it may then be riveted in position. The blocks 21 andthe wedge member 24 form a continuous brace between the head of therivet and the plate 31.

From the construction of the parts just underside-of thehead 26 may betapped with described it willbej seen that the riveting 7 work which isordinarily done in very close quarters may readily and easily beaccomplished. I

After the rivet has been set and riveted,

and it is desired to remove the device, the

,tliev members 21 snugly engage the wall at one side and the ratchethead at the other side. Ilhere is very little downward pressure ony themember 21, because as soon as thesnug is secured, the downward pres sureof thewedge 24 is stopped.

The advantages of my device are readily seen since I am able to holdrivets in places that are almost inaccessible.

Somechanges may be made in the con- Vstruetion and: arrangement of theparts of riveting device without departing from the realspirit andpurpose of my invention, and it is my intention to cover by my claims,modified forms of structure or use of mechanical equivalents, which maybe reasonably incliided'within their scope. I Iclaim' as my invention:

1. A rivet holding deviee, comprising a hollow member having, a pair ofoppositely projecting.members at its lower end, a pan- I of holderdevices 'pivotally secured to said members, blocks supported by saidholder devices having their adjacent faces inclined,

a shank slidably mounted in said hollow member, a wedge one endthereofadapted tojfbej received between said blocks for moving the, blocksapart. 7 I

A rivet 'holding device comprising hollow member having a pair of armssecured thereto at its lower end, holder devices swingingly mountedinsa'id arms, blocks slidably mountedin said holder devices, means for"preventing the separation of said blocks from said holder device,saidblocks having their adjacent 'faces inclined, a wedge memblocks'anda shank on said wedge member whereby itmay be driven for moving theall'for the purposes block members apart, a e A r r 3. A rivet holdingdevice comprising a hollow member having a pair of laterally extendingarms on either side thereof at its lower end, said arms of each pairhaving their ends spaced apart, holder devices. swingingly secured tosaid arms and r eived: therebetween, blocks slidably mounted in saidholder devices, said blocks having their inner adjacentends inclined,one of said blocks having a cup shaped opening in one of its ends forreceiving the head of 'a rivet, a wedge member received between theinner ends of said blocks, a, shank on said wedge and extending throughsaid, hollow' member, theparts being so arranged that the driving ofsaid wedge member' downwardly will cause the blocks to be moved apartall for the purposes stated,

4. A rivet holding member extended through said hollow member, holderdevices secured to the lower end of said hollow member and rivet membersslidably mounted in said holder devices and adapted to engage said wedgemember whereby movement of thewedge member willlforce said rivet membersapart: all for the purposes stated. 7

PATRICK L GRIFFIN.

her extended through said hollow member 7 and. adapted to be receivedbetween Said device of the class de-i scribed, lncludmg a hollow member,a wedge I I

